Kohler 10EORDB

TP-6551 2/14 17Section 2 Operation
Code Fault Description Check
AF Auxiliary fault
input shutdown
Input from a customer-supplied switch that closes
when the fault is active. Shutdown occurs
0.3 s econds after the fault is detected and will not start
when the fault is active (input is grounded). This
protection becomes active 3-seconds after crank
disconnect.
Check the cause of the auxiliary fault.
HE High engine
temperature
shutdown
Shutdown occurs if the engine coolant temperature
exceeds the maximum temperature for more than
5 seconds. This protection becomes active after the
engine reaches the crank disconnect speed.
Note: The high engine temperature shutdown
functions only when the coolant level is in the
operating range.
Check for a low engine coolant level.
LOC Loss of coolant
shutdown
Not used.
LOP Low oil pressure
shutdown
Shutdown occurs if a low oil pressure condition exists
for more than 5 seconds. This protection becomes
active 30 seconds after the engine has reached crank
disconnect s peed (30 second inhibit).
Note: The low oil pressure shutdown does not protect
against low oil level. Check the oil level at the engine.
Check for leaks in the lubrication system.
Check t he oil level and add oil if the level is low.
OC Overcrank
shutdown
Shutdown occurs after 3 unsuccessful starting
attempts. The crank cycle is s et for three starting
attempts.
Check t he fuel supply and battery.
If there is no output voltage, check the line circuit
breaker. Also check for loose connections.
Contact an authorized distributor/dealer for service if
problem continues.
OF Overfrequency
shutdown
Shutdown occurs when the governed frequency
exceeds 110% of the system’s frequency setpoint for
more than 5 seconds. This protection becomes active
10 seconds after engine start (10 second inhibit).
Contact an authorized distributor/dealer for service if
problem continues.
OS Overspeed
shutdown
Shutdown occurs if the engine speed exceeds 115%
of the normal running speed for more than 0.3 seconds.
Contact an authorized distributor/dealer for service if
problem continues.
OU Overvoltage
shutdown
Shutdown occurs if the voltage exceeds 120% of the
voltage regulator setpoint for more than 2 seconds.
Contact an authorized distributor/dealer for service if
problem continues.
UF Underfrequency
shutdown
Shutdown occurs when the governed frequency falls
below 90% of the system’s frequency setpoint for
more than 5 seconds. This protection becomes active
10 seconds after engine start (10-second inhibit).
Reduce the load and restart the generator set.
Contact an authorized distributor/dealer for service if
problem continues.
UU Undervoltage
shutdown
Shutdown occurs if the voltage falls below 80% of the
voltage regulator setpoint for more than 10 seconds.
Reduce the load and restart the generator set.
Contact an authorized distributor/dealer for service if
problem continues.
SCF0 Controller error Indicates a software or communication problem within
the ADC 2100.
Contact an authorized distributor/dealer for service.
Controller needs to be replaced.
Figure 2-5 ADC 2100 Fault Shutdown Codes
Code Fault Description Check
HB High battery
voltage warning
Fault code is displayed if the engine starting battery
voltage rises above 16 VDC for a 12 VDC system or
above 30 VDC for a 24 VDC system for more than
2 seconds when the engine is not running. This fault
condition does not inhibit engine starting.
The fault condition clears when the battery voltage
returns to a v oltage within the limits for more than
2 seconds.
Check the battery rating and condition.
LB Low battery
voltage warning
Fault code is displayed if the engine starting battery
voltage falls below 9.5 VDC for a 12 VDC system or
below 16 VDC for a 24 VDC system for more than
2 seconds when the engine is not running. This fault
condition does not inhibit engine starting.
The fault condition clears when the battery voltage
returns to a v oltage within the limits for more than
2 seconds.
Check the battery rating and condition.
Charge or replace the battery.
Figure 2-6 ADC 2100 Fault Warning Codes